I think I solved this puzzle in an unintended way. I just put the cube just in front of the angled portalable surface(not the one that is activated by the button), and shot the tractor beam on the angled surface, which takes the cube on the ledge to the exit.

Good looking chamber with a nice puzzle. It was fun and even challenging. That took me quite a while considering how easy it looks on first sight. Once I made it through the exit other solutions kept flowing in, number 2 was my first: http://youtu.be/uSxNdhlyEYI

Great puzzle :DFirst I thought, hm thats too easy... and then the cube stopped right before the fizzler LOL great placement! In the demo I hesitated with that e-button because I thought it will flip away the portalable tile but then i realised that it has to be an flipping pannel ^^have fun with the demo[www.dropbox.com]